\Pray"ing\,
a. & n. from {Pray}, v.

{Praying insect}, {locust}, or mantis (Zo["o]l.), a mantis,
   especially {Mantis religiosa}. See {Mantis}.

{Praying machine}, or {Praying wheel}, a wheel on which
   prayers are pasted by Buddhist priests, who then put the
   wheel in rapid revolution. Each turn in supposed to have
   the efficacy of an oral repetition of all the prayers on
   the wheel. Sometimes it is moved by a stream.